I bought some 155 gr in 308 to try in my SPS Varmint and 75 gr in 223 to try in my Winchester 70 Heavy Varmint. The stuff shoots great! In fact, it shoots better than any ammo i have tried in either rifle, so far. So, while I am searching the net for the cheapest possible prices, I run across reviews on it...which brings me to my question:

Is steel cased ammo bad for rifles such as the ones I am using it in? Will it have a negative effect on the barrels? Any help and advice would be appreciated. Thanks in advance.